Thanks for suggestion. I checked the trailer, but I don't think it's worth for me to try the demo. It's just not my type of game.
I myself addded 3 games to my wishlist after checking out the demos on steam this year. First one was manor lords back in march. then came Pagonia and enshrouded in october.
I am sure that releasing demo versions of games can make a difference. Many studios lack the financial power do do months-long marketing campains. Many players are even bored by such campains are are more impressed when they can get their hands on an upcoming title instead of having to watch the same trailer 50 times on youtube or in commercial TV. Many gamers do even avoid platforms as twitch or tiktok, and can't be reached by avldvertising via this platforms.